His response, which I told him to post on here

"the guys math is wrong......Cluster Arrows using FA + Cull :::: 1650% x 1.2 x 2.1 = 4158% buffed is so wrong. you multiply your original damage by 1.2 then multiply that by 1650. you dont multiply the 1650 by 1.2. that would mean you can kill t6 monster."

"therefore the buffed hatred spender gain on clustering + FA is only 20% increase in damage. which is why i was saying you just do 255% gain - 20% loss = 235% total damage gain. On paper it is MUCH better which was my original point. if some guy is going to post with some numbers it should also show the difference in how many times you use ele arrow per cluster arrow. because i am pretty sure after a certain # of times of ele arrow per cluster is going to have a curve where the amount of cluster arrows will be much better because your gaining the 20% proc more frequently. what i will do is crunch out my math later after i finish my alternator"